[rrd-users] rrdtool backed mrtg using massive amounts of memory

[Steven Hartland]

It just happened again so attached some info from the log and truss which
may give someone an idea where the issue is.

A few more things which may be useful:

rrd isnt big:-
du -h as01.gswams_11.rrd
2.8M    as01.gswams_11.rrd

rrdtool config info:
It was created by rrdtool configure 1.3.7, which was
generated by GNU Autoconf 2.61.  Invocation command line was

  $ 
./configure --disable-tcl --disable-python --disable-ruby --enable-perl --enable-perl-site-install --disable-mmap --prefix=/usr/local 
 --mandir=/usr/local/man --infodir=/usr/local/info/ --build=amd64-portbld-freebsd7.0

So the log clearly shows mmap in use, for the update to the rrd that
caused the issue, but not for the next or any subsiquent files, but this
build was definitely compiled with --disable-mmap as shown by config.log.

Next up, as far as I can see rrdtool doesnt even use MAP_ANON so whats
causing this strange behviour?

    Regards
    Steve 


================================================
This e.mail is private and confidential between Multiplay (UK) Ltd. and the person or entity to whom it is addressed. In the event of misdirection, the recipient is prohibited from using, copying, printing or otherwise disseminating it or any information contained in it. 

In the event of misdirection, illegible or incomplete transmission please telephone +44 845 868 1337
or return the E.mail to postmaster at multiplay.co.uk.